You could be forgiven for not having heard of it - few seem to, and yet the case has potentially extraordinary implications for English obscenity law. According to the Court of Appeal, private one to one text chat on the Internet can be subject to the Obscene Publications Act 1959 (OPA).
This means that anyone using the Internet to discuss sexual fantasies may be at risk of committing a criminal offence.

The Court was clearly determined to bend the law for the purposes of an individual case - concerning paedophile images. Unfortunately, in doing so the Court has unwittingly extended the law - shifting the meaning of 'to publish' to be just one person (for example, via instant chat). It significantly expands the scope of material that the Police might seek to obtain in the course of an investigation and also means that conversations individuals might be having via chat - and thus be speculative fantasy exploration - may well attract the law in a way that those individuals may be shocked at.

It's tempting to think, "well, this doesn't concern me". After all, this case concerned a conversation relating to paedophilia, and few would seek to defend such conversations - regardless of the significant extension of law.

However, take a look at the CPS guidelines on the Obscene Publications Act and the scope of instant chat conversations that could come into focus expands further. Here are those areas that the CPS would currently seek to prosecute (you will note the continued inclusion of fisting despite R v Peacock)